There are people in your life who've come and gone
They let you down, you know they hurt your pride
You better put it all behind you, baby, because life goes on
You keep carrying that anger; it'll eat you up inside
. . .
The more I know, the less I understand
All the things I thought I'd figured out, I have to learn again
I've been trying to get down to the heart of the matter
Because the flesh will get weak, and the ashes will scatter
So I'm thinkin' about forgiveness, even if you don't love me anymore

--Don Henley, The Heart of the Matter